Reason for refactor:
In cases where one might need to use multiple observers, say region, master and regionserver; and the fact that only one class can be extended, it gives rise to following pattern:
public class BaseMasterAndRegionObserver
extends BaseRegionObserver
implements MasterObserver
class AccessController
extends BaseMasterAndRegionObserver
implements RegionServerObserver
were BaseMasterAndRegionObserver is full copy of BaseMasterObserver.
There is an example of simple case too where the current design fails.
Say only one observer is needed by the coprocessor, but the design doesn't permit extending even that single observer (see RSGroupAdminEndpoint), that leads to copy of full Bas
e...Observer class into coprocessor class leading to 1000s of lines of code and this ugly mix of 5 main functions with 100 useless functions.
Javadocs changes:
- Adds class comments on 'default' methods and expectations.
- Adds explanaiton of Exception handling in Observers' class comment. Removes redundant @throws before each function.
- Improves javadocs for a bunch of functions
- deletes empty @params in a bunch of places
Change-Id: I265738d47e8554e7b4678e88bb916a0cc7d00ab3
Addresses review comments by Sean Busbey and Appy that happened
to come in long after the commit of HBASE-6721, the original
rsgroup issue.
Also includes subsequent accommodation of Duo Zhang review.
Adds a new type to hold hostname and port. It is called
Address. It is a facade over Guava's HostAndPort. Replace
all instances of HostAndPort with Address. In particular,
those places where HostAndPort was part of the rsgroup
public API.
Fix licenses. Add audience annotations.
Cleanup and note concurrency expectation on a few core classes.
In particular, all access on RSGroupInfoManager is made
synchronized.
M hbase-client/src/main/java/org/apache/hadoop/hbase/ServerName.java
Host the hostname and port in an instance of the new type Address.
Add a bunch of deprecation of exotic string parses that should never
have been public.
M hbase-rsgroup/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdmin.java
Make this an Interface rather than abstract class. Creation was a
static internal method that only chose one type.... Let it be free
as a true Interface instead.
Support weekly and monthly mob compact partition policies in addition to the existing
daily partition policy.
Signed-off-by: Jingcheng Du <jingchengdu@apache.org>
M TestStressWALProcedureStore.java
Disable test that now runs that fails because of difference in pb3.1.0.
Signed-off-by: Michael Stack <stack@apache.org>
locks on tables/namespaces/regions (Matteo Bertozzi)
Incorporates review comments from
https://reviews.apache.org/r/52589/https://reviews.apache.org/r/54388/
M hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncTableBase.java
Fix for eclipse complaint (from Duo Zhang)
M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/Procedure.java
M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/WALProcedureStore.java
Log formatting
M hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/ProcedureTestingUtility.java
Added wait procedures utility.
A hbase-protocol-shaded/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/generated/LockServiceProtos.java
A hbase-protocol-shaded/src/main/protobuf/LockService.proto b/hbase-protocol-shaded/src/main/protobuf/LockService.proto
Implement new locking CP overrides.
A hbase-server/src/main/java/org/apache/hadoop/hbase/client/locking/EntityLock.java
New hbase entity lock (ns, table, or regions)
A hbase-server/src/main/java/org/apache/hadoop/hbase/client/locking/LockServiceClient.java
Client that can use the new internal locking service.
